A Snickers^{$\rightarrow$}candy bar contains 280 Calories, of which the fat content accounts for 120 Calories. What is the energy of the fat content, in kJ?

Question

Quizplus · Accepted Answer

The fat content provides 120 Calories.
To convert Calories to joules, we multiply by 4.184 J/Cal:
120 Calories x 4.184 J/Cal = 502 J
To convert joules to kilojoules, we divide by 1000 J/kJ:
502 J / 1000 J/kJ = 0.502 kJ
Therefore, the energy of the fat content is 0.502 kJ or 5.0 x 10^-1 kJ.
Choice C is the only answer that matches this result.

A Snickers →\rightarrow→ candy Bar Contains 280 Calories, of Which the Fat Content

A Snickers^{$\rightarrow$}candy Bar Contains 280 Calories, of Which the Fat Content